Means for distorting tubes



Oct. 2 1923.

A. VASSELLI MEANS FOR DISTORTING TUBES Filed 31111166, 1919 in grail)!Patented Oct. 2, 1923.

ANTHONY Assn Lr, or nnwAnK, NEW JERSEY, .assrenon,eyivrnsnnjassremannr's; TO HnaaIMAN NATIONAL sermon nn-crayon nnwyonml'rausrnn;

1 EANS ron nrsron'rrrve'rcsss;

sameness mg: a s e; se'ria n soa32e[ To all whom it may concern Be itknown tl atl, ANTI-roar VassiaLia,

a, citizen of the United States, and a resident of the c tyof Newark and,State ol ,New.Jei'- soy, have invented a, certain new and useful Meansfor Distorting. Tubes, of which chines, and has for, its objecttheproduction of efiicient meansfor. forming a'slight, obtuseangle atone end of the tube and sn'nul; taneously expand ng the opposite endthereof, by means of a single, rigid-core andcoil; by means of devicesmovinglongitudinally of thej tube. V I

further ob ect of theinvent on s the provision of nieans'forbending andeXpan sion of'tubesfol the character described,

singlelin, construction, thoroughly reliable and eflicient in itspurpose, positive in opera tlon, easily man pulated andlnexpensive ofmanufacture.

With these and other'objects in view, to be more fully set forthhereinafter, the invention consists in thenovel construction,combination of elements, and arrangement of parts which will beexemplified in the construction hereinafter described infthespecification and illustrated in theaccompanying drawings consideredtogether or separately.

The inventive idea involved is capable of receivlng a variety ofmechanical expressions, one of which for the purpose of illustrating theinvention, is shown in the accompanying drawings.

The invention will be first described in connection with theaccompanying drawings illustrating one embodiment of my .invention,wherein similar reference characters are used to designate correspondingparts throughout the several views, and then more specificallv definedand indicated in the appended claims.

In the drawings,-' 7

Fig. 1 is a longitudinal sectional viewof an apparatus for carrying outthe process, the section being taken on the line 22 of Fig. 2; v

v Fig. 2 is a plan view of a portion of the device; and

Fig. 8 is a side elevation of a tube after,

the bending and expanding operation.

The process may be carried out in any form of machine havin a'recirocatin 'tool carrying element. f'An ordinary punch press may beemployed i i i The reciprocating head 1 01 1101; an appaw ratus isshown. The head carries a SPQClZL j tool having a' portion 2 'a'daptedto enter the tubebefore the latter is expanded, a portion 4; oi greateichameter nd adapted toexpand the .tube to the 'diam'eter {desirecLI-thatis, a

diameter equal' totheportion 4. Thesh'oul} der is adapted to engage theend 7 Of the tube after the expansion thereof. r The table 6 of thepressca'rries a pair ofvise members, 7, between which is clamped aplate,,8, which carries cylindrical boss,

9, of a diameterslightlyl'less, than tli'at lof the bore ofjtli'et'ubefS.

ranged at ani angle to thefplate corres'pjonding. totheiangle to begiven the end'of the tube.

vise niembers is a pair of die imeinbersjlQ; each of whichisprovided'witha semi oylindrical groove, llfand the-groovesf when the''die members are positioned, forni' a cylindricalv b'oreoi a diameterac'lapted;,. t0 receive the tube to be bent; The lower end of the boreidgiVii the. anglejt whichthe tube is tobe bent; Thefa-nnular spacebetween the boss :9 anfd the wall-1 ofthe'bore is adapted tofl'jre'ceivethe end of the't'ube. I

The upper end of the dieis counterbored as at 12, and a split ring 13 iscarried inv the counterbore, The bore of the ring 13 is of the ring ischamfered as at 14.

The die is positioned in axial alignment with the special tool carriedinthe head 1. A straight section of tubing is placed inthe borePreferably, the lower end of the tube is beveled as at 15 in'order' thatone portion may engage between the boss 9 and, the wall of the die. a t

a The head 1 is moved downward and the equal to that of the die,"and theupper edge portion 2 of the tool enters and expands the continuedmovement of the head will engage I the shoulder 5 with the top of thetube and r 75 Resting. n the plate,"8, and' b tw V I gitu'dinalmovement.

force the latter downward ai'id finish the" bending operation. Theehamfer 14 of the ring 13 Will give a finish to the expanded portionofthetube.

".lVhen the bending and expanding opera 7 Inaccordance with theprovisions of the patent statutes, I have described the princi- 15 pleof "my invention together with the apparatus which I now consider to;represent thebest embodiment thereof, but I desire it understood that myinvention is not confined to 'the particular form of apparatus hereinshown and des ribed, the same being merely r illustrativaand that theinvention can be carried out in other ways without departing frpm thespirit of my invention, and, therefore, I claimibroa'dly the righttoemploy all equivalent inst'ru 'nentaliti es coining Within the 'scope'ofthe appended claims, and, by means ofwhich'objects of my invention areattained, andithenewresults accomplished,

. as herein set i tortln as it is obvious that the particular embodimentherein shown and descrlbed is only one of many that canbe em- 7 ployedto attain these objects and accomplish these results.

s Having now described my inventiomiwhat I 7 claim and desire to secureby Letters 7 Patent is 1.- Anapparatus forbendin tubes, which comprisesa die member adapted to receive 1 the tube, a rigid, integral corecarried in the 'die and at an angle to the major portion of the axis oitthe die,,and means movable in this 9th day of May, 1919, p I V ANTHONYvAssELLr" the direction longitudinally of therdie, for moving the tuberelatively to the die and 'core to expand the tube andbend one end ofthe tube to an angle tothe axis of the major portionofthe tube. 2. Anapparatus for bending tubes com:

prising separable die members adapted'to be. I V

placed together toforni an angular, tubular chamber," a base plateadaptedto support said die members, said base plate; having a boss whichprojects into but is spaced from the Walls of said annular chamberformed bythe" die members when" said die 1 members are position-ed ,onsaid "plate iivis'e members for holding saiddi'e members and said platerigidly together and a reciprocating plunger adapted to enter a tube tobe bent and to force it into saidfehamber and over said boss.

3'. An apparatus for bendingtubes com-V prisings'eparable die inembersadapted to be placed together to form an angularytubular chamber a baseplate adapted tosupport and position said die members under the plungerof a press, said base plate having an integral boss which projects intobut is spaced from the walls of said angular cham ber formed by the diemembers when said die members are positioned upon saidplata Vvise-members for holding said die members and'said plate rigidlytogether, anda mov able stepped mandrel adapted to -enter the tube to bebent and toi'orce it into said chamber and over-said boss.

This specification signed [and witnessed lwitnesses z' e Jon L. Loreen,M. J ONES.

